LF1290NP-682

Common Mode Chokes Overview

The LF1290NP-682 is a two-line common mode choke manufactured by Sumida America Components Inc. It features an inductance of 6.8 mH measured at a test frequency of 1 kHz. The component supports a maximum current rating of 250 mA and exhibits a DC resistance (DCR) of 2.5 Ohms. Designed for through-hole mounting, it serves as a filter element in electronic circuits requiring common mode noise suppression.

Common Mode Chokes Feature Summary

• Provides common mode noise filtering for two-line configurations
• Utilizes through-hole termination for PCB integration
• Constructed with ferrite core material

Common Mode Chokes Applications

• Power supply input filtering
• Signal line noise suppression
• EMI reduction in electronic assemblies

Common Mode Chokes Procurement Notes

Verify the specific package type and lead configuration against the official datasheet to ensure compatibility with the target printed circuit board layout. Confirm that the 250 mA current rating meets the operational requirements of the application circuit under all expected thermal conditions.

Common Mode Chokes Selection Notes

Select this component when a through-hole solution is required for two-line common mode noise attenuation. Ensure the 6.8 mH inductance value aligns with the target frequency range for interference suppression. Verify that the 2.5 Ohm DC resistance does not introduce excessive voltage drop in the power path.

Common Mode Chokes Part Context

This part belongs to the LF series of common mode chokes from Sumida. These components are engineered for electromagnetic interference suppression in low-current applications. The design focuses on providing effective noise cancellation while maintaining a compact form factor suitable for standard through-hole assembly processes.

Common Mode Chokes Replacement Considerations

Consult manufacturer cross-reference lists for verified substitutes. Ensure any replacement maintains identical inductance, current rating, and physical dimensions.